Work-clamp.



B. F. MAYO.

n WORK CLAMP. i

APPLICATION FILED SEPT. 17| 1914.

1,174,751. Patented 1131121916.

narran sfrafrrs retrasar orrron.

.iB ENJP-.MN .F- MAYO, 0F SAT-EM, ,MASSACHUSETTS- WORK-cnam?.

VSpecicaton of Letters Paten-t.

Patented'ilar. 7,'196.

.Qrrginalrapplcation ledJuVne 9, 19.10, Sera1 10. 565,962. glrlividedandthis applicationfiled-September,17,

y 1914. Serial No. 862,204..

To all whom t may concern:

Be it known that I, BENJAMIN F. MAYO, a citizen of the United States, residing at Salem, in the county of Essex and State of Massachusetts, have Ainvented certain Improvements in Work-Clamps, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like Darts .in the several figures.

yThis invention relates to devices lfor ypositioning relatively to eachother the parts of .work that are to be subsequently united by sewing, or other f astening-inserting mechanism, and for maintaining the parts in correct relation during such operation, this application being a division of `mv application filed June 9, 1910, Serial No. 565,962.

An important object of .the .present invention is to provide means for insuring the proper arrangement of the parts of a shoe upper on a form so 4thatsaid parts will be in position for subsequent connection bv stitches, or other permanent fastemngs, and

after so arranging said .parts to hold themy firmly in assembled relation during the operation .of vthe sewing, .or other fastening-inserting machine, by which they are ,conn-ected.

While in the embodiment of the .invention ,herein illustrated the mechanism for-positioning yand holding the work is constructed ,especially for use Ain connection with the parts of shoe uppers, and it is with reference to such shoe parts that many features of the invention will be found to possess the greatest advantages, somev features of Lthe invention will obviously be found of value to facilitate the assembling` and holding together o f the parts of other kinds of work that are to be secured together. -F or this reason certain of the claims hereinafter-made do not limit the features and combinations jects. `an important combination of the present invention ,consists in `a form constructed a@ inmateriales .the relative area51-esiti@ parts of the work which are to lbe subsequently connected, and means for holding` the v parts in assembled relation while they are being united by a lf,astelling-inserting mechanism. In the illustrated construction, the form is shaped for holding 1the parts of shoe uppers and the holding means is a yclamp which isfshaped to `embrace the work- ,holding form. Preferably the form is adjustable to accommodate differentY sized shoe uppers, and in ,connection therewith a carrier Vhaving a series of adjustable gage pin, is employed, Athe pins being adapted to project through the eyeleted openings in shoe quarters; The two lowermost pins serve yto position the rear edge ,of 4the front of a vamp, while the lower edges of vthe sides of -the vamp are supported by an adjustable Aparts and applied to a sewing, or other suitable machine, where the shoe parts will be joined by permanent fastenings.

Other features ofthe invention than those above referred to` including important details of construction and combinations of parts, will be hereinafter more particularly described and claimed.

Inthe drawings: Figure l is a viewinv si de elevation of a shoe form and clamp with the parts of lanupper clamped in assembled relation on the form. Fig. 2 is a view in side elevation .of the form .shown in ,Fig.V l, without the clamp, and illustrating certain details not visible in Fig. l. Fig. 3 is a view in cross-secti on on the line ai-, Fig. 2. Fig. l is a detail view, showing in perspective the gage ypins for locating the rear edge of the .front part ,of a vamp and for holding the of the Quartals tggetlise ymember which positions the upper edges of the vamp relatively to vth'e lower ,edges of and Fig. 5 is a detail view, showing a clamp for holding the uppers ot button and other shoes.

The embodiment of the invention illustrated herein, includes aY iorm and clamp which are designed for positioning and holding together 1camps and quarters. The base or pedestal 1417, supports a form comprising a torepart, 1&5, and a heel part, 151, said parts being preferably rotatably-supported on the base. T he heel part is shown as-being provided with guide rods 155,156, to slidingly engage suitable ways in the fore-part and thereby permit longitudinal adjustmentor" the heel part, and aA bell- Vcranlr lever, 157, having one arm connected by a link, 159, with the heel part and its other arm connected by a rod, 161, or the like, with' a treadle, serve as a means for moving the heel part rearwardly. r)The heel part is moved forwardly by any suitable means, as, tor instance, a spring 163, which may be connected at one end to the rod 161, and at its other end to a tixed pointV on the fore part, as shown. At suitable points in the sides ofthe heel part, openings are formed to slidably receive the pins 165, which are normally projected beyond the surface thereof by yielding means, as springs, An externally threaded rod, 167, is rigidly connected with the heel part and projects downwardly therefrom, and a bar 169 having a sleeved-extension, 170, to tit v said rod, is arranged below the heel part and adjustably sustainedrelatively thereto by a thumb-nut 171, whichris in threaded engagement with the rod.

rlhe tore part is formed with openings, 173, through which project positioning pins, 175, `carried by transversely slidable blocks,

- 177. which are arranged for adjustment in a frame, 17e. by the reversely threadedl screws, 179. The blocks also have threaded engagement with a screw 181V by which they may be adjusted longitudinally in the frame174e. This trame is shown as being provided with an extension, 189., which may be attached to the fore part by a screw, as shown by dotted lines in Fig. 2. The tore part may also be formed or provided with an arm, 153, to whose extremity is connected by a. clamping bolt, 184, a clamp k183, carrying spaced arms, 185, covered with some sott material and adapted for engagement with the lower front portion of the quarters of. a button boot or shoefto hold the same in position on` the form. The clamping members 187 and 189 are arranged to be placed over the parts of ,the form-andthe shape of Lthese members is such that they will snugly iit over a vamp placed on the form, as shown in Fig. 1. In order that the clamp. members may be capable of longitudinal adjustment to accommodate vVamps 'of dierentsizes, their ends are arranged to overlap at a point located preferably about midway of the form, and one of the members is provided with slots, 191, and the other member with clamping bolts 193, to enter the slots and with winged nuts engaging the bolts, whereby the members nay be held in their different positions of adjustment. il stud 192, extending from a point near each end portion of the member carrying the clamping bolts, and respectively entering the slots 191, serve, in connectionwith the bolts 193, tov maintain the two members ot the clamp in parallelism during such adjustments. rlhe clamp mem' bers are preferably provided with bracketsj or other suitable supports for a guide bai 195, which is divided at a suitable point and has its ends connected by a telescopic or similar sliding joint, 196, and a guiding tiange, 197, which is similarly divided and yhas its ends arranged to overlap, as shown at 19S, is also supported trom the members, the iiange being preferably located, approximately, at the uppermost edge of the members, as will be seen in Fig. 1. The

described construction of the bar 195 and f flange 197 Vpermit longitudinal relative movements of those parts as the clamp members upon which they are carried are being adjusted without disturbing their relation to said members, and in a manner that will be readily understood. A plurality ot' U- shaped spring bars 201, are arranged to cooperate with the clamp members 187, and 189, in holding the vamp and quarters in position to be sewed together after they have been assembled on the for-m. These bars are each constructed at one end tor detachable engagement with a slotted head, 210, which is held Vand guided in proper relation to the clamp member by a pin, 209, extending from said member and entering a slot or opening in the head, and by other pins, 207, projecting laterallv from opposite sides ot the head, and movable between the arms of staple-shaped guides i105, supported by the clamp member. A cam 203,7is connected pivotally Vwith the head and constructed and arranged for engagement with the clamp member o force the lower limb oit' the spring bar against certain parts oi" thei'vamp and quarters in order to clamp them firmly betweenV the limb of the bar and its lower limb provided with a bearing plate 202,'which is designed to engage the lower extremities of the extreme front edges ot together.

the quarters, and to coperate with the rear edge of the clamp member 187 at this point in clamping the vamp and quarters tightly To accommodate this plate, the form is constructed with the opening 176, as shown in Fig. 2.

In the operation of assembling and cla1nping together a vamp and quarters with the devices just described the parts of a shoe quarter are placed on the 'form with Vtheir lower edges resting on the pins 165, and

the pins 17 5 are inserted in eyelet holes near the lower front edges of the quar` ters, as shown in Fig. 1, which properly locates the quarters on the form. The rod 161 is then depressed to the desired degree by a foot' treadle, or other suitable means,

which, through the described connections,

moves the heel part oiE the form to the rear sutliciently to straighten the quarters and smooth out all the wrinkles. A vamp, with the rear or heel portion sewed up, is then placed over the quarters and positioned .on the form with its lower edges resting upon the bar 169, (see Fig. 3) and the operator pulls the vamp at the toe in a forward direction to straighten out. the vamp, particularly along the upper edge. Prior to this step in the assembling operation the quarters were supported upon the plungers 165 which Vserved to locate their lower edges properly with respect to the upper edges of the vamp in order to provide the proper amount of overlap. The act of pulling forward the vamp at the toe causes the vamp to hug the sides of the form tightly and forces the pins 165 in against their springs, whereby the overlapped portions of the vamp and quarters are permitted to contact with each other in the proper relation. The clamping members 187, 189, are then placed over the vamp and quarters as shown in Fig. 1, the spring bars 201 are inserted in position, and the cams 203 operated to tightly clamp the vamp and quarters between the lower limbs of the spring bars and said members, the operator turning` the. form on its base during suchk operations in order to present the same in the most convenient position for A as thus positioned constructed for removal the several described manipulations.

It will be observed that the ends of the inner limbs of the spring bars and the adjacent coperating edge of the clamping members clamp together the overlapped edges of the vamp and quarters after theseV of the bars 201 therefrom in an upward direction. The work as thus positioned and held together is now readv for application to, tliesewing, or otheriastening inserted machine, whoseA vconsttactical:.and moldeA et operation in connection withgthis embodiment of the invention may be substantially like that described in my co-pending application. Serial No. 565,962, heretofore referred to. l

Where the positioning and clamping devices are used in connection with vamps for button shoes, the quarters may be buttoned at the lower portion thereof; thev pins 175, inserted in a suitable number of the button holes, the clamp 1.83 lowered into a position to properly engage the upper and hold it, and a spring 220,' (see 2) lia-ving one end secured tothe arm 153 and its other end secured to the clamp at a suitable point beyond the bolt 184, may be employed to hold the clamp raised above the form, or

in clamping position upon the upper, as de sired.

Having thus described my inventifn, what 1 claim as new and desire to secure by Letters Patent of the United States is:

1. The combination with a shoe form, O means associated therewith for determining the relative positions of a plurality of parts of an vupper on said form, and a clamp for holding said parts together in the positions determined by said means while they are being united by stitch-forming mechanism.

2. The combination with a shoe form constructed to receive the parts of an upper, of means carried by the form adapted to determine the relative positions of said parts, and means for holding said parts together in such relative positions while they are being united by stitch-forming mechanism.

3. The combination with a shoe form, of means thereon for determining the relative positions of a plurality of parts of an upper to be secured together, and means for ho-ding said parts in such assembled relation on the form andl while they are being united by sewing mechanism and adapted for removal with the work from the form to such sewing mechanism.

t. The combination with a shoe form, of means for determining the relative positions of the parts of a shoe upper on said form, and a clamp for holding said parts 'of the parts of a shoe upper, and a clamp to hold said parts inY such, assembled. relaf .Ennemi i 7. The combination ywith a shoe form, of means thereon to sustain a vamp and quarters by their edges constructed and arranged to determine the relative positions of said parts preliminary to the operation of sewing them tcgether.

8. The combination with a shoe form, of means to sustain a vamp and means to sustain quarters with the edges of said parts in overlapped relation, one of said means being adjustable for causing relative movement of the vamp and quarters to control the extent to which their edges are overlapped.

9. The combination with a shoe form, of adjustable means for sustaining a vamp by one edge and means'or sustaining quarters withv their edges in overlapped relation to y the other edge of the vamp.

10. The combination of a shoe "form, a rod depending therefrom, a transversely7 extending bar movable on said rod and arranged to support a vamp, a nut threaded to said rod below the bar for adjustably sustaining the same, and means for supporting quarters located above said bar.

11. rlhe combination with a shoe form, of devices carried thereby and adapted to enter openings in quarters, said devices being'constructed and arranged to determine the position of the edge ot a vamp relatively to said quarters. v f c 12.` rlfhe combination with a shoe form, of devices carried thereby adapted to Venter openings in quarters andmeans for locating the edge ot' a vamp relatively to said quarters, means for sustaining a vamp, and means for sustaining quarters.

13. The combination with a form constructed to receive the parts of a shoe upper, of means thereon to determine the positions of said parts, and a clamp to engage saidy parts while on" the form and hold them together, the form being constructed to permit the removal therefrom of the work while clamped. y

lil. The 'combination with a shoe form, of means thereon to support a vamp, and yielding devices located on opposite sides of the form and arranged to normally project for supporting the lower edges of the quarters a suitable distance below the upper edge of the vamp, the parts being so arranged that when the vamp is pulled longitudinallv said devices will yield and thereby permit engagement of the adjacent edges of the vamp and quarters.

15. The combination with a shoe form, of devices carried thereby for determining the relative positions of a vamp and quarters on said form, and clamping means shaped to tit over and embrace the form and to engage the vamp and hold' the vamp and quarters in assembled relation. y

16. The combination with a shoe form, of

devices carried thereby for determining the vrelative positions of a vamp and quarters on said form, and clamping means shaped to I'it over and embrace the form and toengage the vamp and hold the vamp and quarters in assembled relation, said clamping means having capacity `tor adjustment.

17. The combination with a shoe form, of devices carried thereby -tor determining the relative positions of a vamp and quarters on said form, and clamping means shaped to tit over and embrace the form and toengage the vamp and hold the vamp and quarters in assembled relation, said form and clamping means being adjustable.

18. The combination with a shoe form, ot devices thereon to support the lower edges ot' quarters, and means to support a vamp on the form arranged for adjustment to position the upper edges of the vamp in overlapping` relation to the quarters.'

19. The combination with a shoe form, of yielding devices thereon to support the lower edges of quarters, means to support a vamp on the form arranged tor adjustment to position the upper edges ot' the vamp in overlapping relation to the quarters, and clamping means constructed to tit over the form and hold the vamp and quarters in assembled relation.

20. The combination with a shoe form, of yielding devices thereon to support the lower edges of quarters, means to support a vamp on the form arranged for adjustment to position the upperedge of the vamp in overlapping relation to the quarters, and clamping means constructed to tit over the form and hold the vamp and quarters in assembled relation, said clamping means being arranged for removal from the form with the clamped work.

21. A form adapted for use in assemblingy the parts of shoes having means to determine the relative positions of said parts, and means removable with the assembled parts from the form for holding them together.

22. A curved form constructed in semblance of the finished article and adapted for use in assembling parts which are to be connected. said form being constructed to determine the relative position ot said parts prior to their connection. and means having a curved conformation to agree with the portion of the form over which it is placed and extending around said form for clamp- `inng the parts of the work in the predetermined relative position after they have been assembled.y

23. A form adapted for use in assembling parts which are to be connected and vconstructed to `determine the relative position of said parts prior to their connection, and means for clamping the parts in assembled relation on the form and adapted for removal' with Lthe Work .soheldf .3. A-1

' Q4. A shoe form for use in assembling parts of an upper, said form being constructed to determine at aA plurality of points the amount of overlap of the parts for attachment together.

25. A shoe form for use in assembling parts of an upper, said form being con4 structedA to determine at a plurality oi' points the amount of overlap of the parts for attachment together, and a clamp to secure said parts in assembled relation while they are so positioned.

2G. A shoe form for use in assembling parts of an upper, said form being constructed to determine the relative positions of the vamp and quarters for attachment together, and means adapted to maintain the parts of the upper in assembled relation to one another and for removal with the upper from the form while so b olding the work.

E27. The combination with a shoe form for positioning relatively a vamp and quarters, of a clamp comprising members constructed to iit over the form and jaws to cooperate with said members in holding the vamp and quarters in assembled relation.

28. The combination with a shoe form fork positioning relatively` a vamp and quarters, of a clamp curved to fit over and embrace said form and to engage the vamp and hold the vamp and quarters in assembled relation. v

29. The combination with a shoe form for positioning relatively a vamp and quarters, of a clamp comprising adjustable members shaped to iit about the form, and cam-actuated jaws to cooperate with said members in holding the vamp and quarters in assembled relation. n

30. The combination with a shoe form for positioning relatively a vamp and quarters, of a clamp comprising longitudinally adjustable members constructed to t abouty the form, and jaws to cooperate with said members constructed to clamp the parts in yielding engagement with the members.

31. The combination with'a shoe form for positioning relatively a Vamp and quarters, of Va clamp comprising members constructed to fit about the form, resilient jaws to cooperate with said members, and cams to actuate said jaws.

32. The combination with an adjustable form for positioning relatively the parts of shoe uppers, of an adjustable clamp arranged to fit overl the form and hold the upper parts in assembled relation, said clamp being removable with the work from the form.

aA form for positioning the parts of shoeuppers, of means adjustably supported from the form and constructedV to engage the lower front portion of the quarters of a button shoe to clamp iton the form. Y

35. Thevcombination with a 'form for positioning the parts of shoe uppers, or' a clamp supported pivotally from said form and having spaced arms to engage the lower frontfpart of the quarters orn a button shoe to hold the same on the form.

36. The combination with a form for positioning the parts of shoe uppers, of a clamp supported from said form and having spaced arms to engage the lower front part of the quarters of a button shoe and hold it on the form, and a clamping bolt for adjustably connecting the clamp to said eX- tension.

37. rl`he combination with a shoe Jform comprising a fore part and a heel part, of

a clamp comprising adjustably connected.Y

' said form, and vmeans to cause relative longitudinal movement of the form parts in fitting parts of shoes thereto.

38. rlhe combination with a shoe form comprising a fore part, and a .heel part supported for adjustment relative to the fore part, of treadle actuated means for separating said parts, yielding means for moving said parts together, and a clamp to it over the form, and hold the parts of an upper in assembled relation thereon.

39. The combination with a Vshoe form comprising a fore part, and a heel part having means to slidably engage the fore part, of treadle-actuated means for separating said parts to stretch an upper on said form, means to reversely move said parts, and a removable clamp to hold the parts of the upper in assembled relation on the form.

a0. The combination with a shoe form, of means for positioning quarters thereon comprising pins to enter eyelet holes near the lower front edge of the quarters, and means to effect simultaneous adjusting movements of said pins toward and from each other.

4l. rlhe combination with a shoe form, of means for positioning quarters thereon comprising pins to enter eyelet holes near the lower front edges of the quarters, and means to adjust said pins longitudinally of the form.

42. The combination with a shoe form, of pins arranged to enter eyelet holes near the lower front edges of quarters'on said form, and means permitting transverse and longitudinal adjustments of said pins.

43. The combination with a shoe form, of means thereon to support a vamp, and devices located on opposite sides of the form and arranged to normally'project for supporting the lower edges of the quarters a name to this specification in the presence of suitable distance below the upper edge of two subscribing witnesses. the vamp, the parts being so arranged that when the-vamp is pulled longitudinally said *BBB JAMIN F' MAY O' devices will permit engagement of the adja- Witnesses: cent edges of the vamp and quarters. ARTHUR L. RUSSELL,

In testimony whereof I have signed my HARLOW M. DAVIS.

Copies of this patent may be obtained for ve cents each, ny addressing the Commissioner of Patents,

' Washington, D. C. 

